DIVISION INSTRUCTION MIOSHA Consultation Education & Training Division Michigan Occupational Safety and Health Administration Department of Labor and Economic Growth DOCUMENT IDENTIFIER: DATE: CET-ADM-06-03 October 19, 2006 SUBJECT: Hazard Assessment/Personal Protective Equipment Program ABSTRACT I. Purpose: This instruction establishes the Michigan Occupational Safety and Health Administration (MIOSHA) Consultation Education and Training Division (CET) hazard assessment, policies and procedures for staff use of personal protective equipment (PPE), employer or employee-owned. II. Scope: This instruction applies to all CET staff use of PPE, employer or employee-owned. This instruction does not cover respiratory protection, electrical protective equipment, and job tasks involving exposure to blood or other potentially infectious materials. The instruction addresses hazard assessments, equipment selection, staff training, and record keeping requirements contained in MIOSHA Personal Protective Equipment standards. III. References: A. Agency Instruction MIOSHA-ADM-05-1, MIOSHA Hearing Conservation Program. B. Agency Instruction MIOSHA-ADM-06-4, MIOSHA Personal Protective Equipment Program. C. Agreement between the State of Michigan and the Michigan State Employee Association, Article 19, Section E, G & H. D. Agreement between the State of Michigan and the SEIU local 517M, Section 36, B & D. E. Michigan Department of Civil Service Regulation 5.14Maintenance Allowances and Reimbursements. F. MIOSHA Standards, Construction Part 6, General Industry Part 33, and Occupational Health Part 433, “Personal Protective Equipment.” CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program G. OSHA 29 CFR 1910.132, Personal Protective Equipment. H. OSHA 29 CFR 1926.28, Personal Protective Equipment. IV. Distribution: MIOSHA, CET staff; Agency S-drive public folder accessible. V. Cancellations: This instruction supersedes any other division documents for CET staff, policies or procedures regarding personal protective equipment. VI. Contact: Nella Davis-Ray, CET Program Manager VII. Originator: ____________________________ Connie O’Neill, Director Consultation Education and Training Division 2 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program I. Purpose. This instruction establishes the MIOSHA CET hazard assessment, policies and procedures for staff use of personal protective equipment (PPE), employer or employeeowned. II. Scope. This instruction applies to all CET staff use of PPE, employer or employeeowned. This instruction does not cover respiratory protection, electrical protective equipment, and job tasks involving exposure to blood or other potentially infectious materials. The instruction addresses hazard assessments, equipment selection, staff training, and record keeping requirements contained in MIOSHA Personal Protective Equipment standards. III. References. This procedure incorporates the requirements of: A. Agency Instruction MIOSHA-ADM-05-1, MIOSHA Hearing Conservation Program. B. Agency Instruction MIOSHA-ADM-06-4, MIOSHA Personal Protective Equipment Program. C. Agreement between the State of Michigan and the Michigan State Employee Association, Article 19, Section E, G & H. D. Agreement between the State of Michigan and the Michigan Professional Employees Society, Article 5, Section C. E. Michigan Department of Civil Service Regulation 5.14-Maintenance Allowances and Reimbursements. F. MIOSHA Standards, Construction Part 6, General Industry Part 33, and Occupational Health Part 433, “Personal Protective Equipment.” G. OSHA 29 CFR 1910.132, Personal Protective Equipment. H. OSHA 29 CFR 1926.28, Personal Protective Equipment. IV. Cancellation. This Instruction supersedes any other division documents for CET staff, policies or procedures regarding personal protective equipment. V. Responsibilities. A. CET Management. 1. Appoint a CET PPE Program Committee. 2. Review and approve all changes to the CET PPE program. 1 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program 3. Approve the selection and purchase of employer & employee-owned PPE. 4. Ensure the periodic evaluation of the CET PPE program. 5. Certify the completion of the CET hazard assessment (see Appendix A). B. CET PPE Program Committee. 1. Conduct workplace hazard assessments to determine the presence of hazards that necessitate the use of PPE. 2. Periodically evaluate the suitability of previously selected PPE. 3. Review, update, and evaluate the overall effectiveness of the PPE Program. 4. Provide training and technical assistance to CET staff on the proper use, care, and cleaning of approved PPE. C. CET Supervisors. 1. Ensure that appropriate PPE is provided and made available to employees. 2. Ensure employees are trained on the proper use, care, and cleaning of PPE. 3. Ensure the PPE program elements are followed and that employees properly use and care for PPE. 4. Seek assistance from the CET PPE program committee to evaluate new hazards. 5. Ensure defective or damaged equipment is immediately replaced. D. CET Staff. 1. Follow the requirements of the MIOSHA and CET PPE programs. 2. Use PPE as necessary. 3. Attend required training sessions. 4. Care for, clean, and maintain PPE as necessary. 5. Inform supervision of the need to repair or replace PPE. 2 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program 6. Stay alert to surroundings to avoid unnecessary exposure to hazards while performing job assignments. 7. Inform supervision when a special situation arises that may require additional or other PPE. 8. Have available for use: eye, head, toe, and hearing protection when conducting field activities. 9. Follow customer’s personal protective equipment policies as it relates to their own safety and health. E. Management and Technical Services Division. 1. Process purchase orders for PPE, replacement parts, accessories, and cleaning supplies. 2. As instructed by the division or unit purchasing the PPE, stock inventories of PPE in various sizes and styles and ensure that spare parts are available. 3. Service, return to the manufacturer, or contract with a trained technician for the repair or servicing of PPE. VI. Hazard Assessment Criteria. The MIOSHA PPE standards require the assessment of working conditions to determine hazards that are present, or are likely to be present, that necessitate the use of PPE. The working conditions of CET field and supervisory staff change on a daily basis. Staff may be exposed to a variety of safety and health hazards in the performance of their job tasks. The nature of CET fieldwork prevents this hazard assessment from being site or job task specific. Fall protection equipment provided to staff shall only be used as a classroom training tool. With approval of supervision, designated staff may use personal fall arrest equipment. This hazard assessment is based on the expectation that CET field and supervisory staff will observe and be in proximity to hazardous operations as part of their assigned job tasks, and therefore may be exposed to hazards during the performance of these tasks. Based on this expectation, the CET PPE program committee will meet periodically to determine the suitability of the PPE presently available and as necessary, will select new or additional equipment that ensures a level of protection required to protect CET staff from the identified hazards. 3 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program VII. Hazard Assessment and PPE Selection. A. Head Hazards. Performing tasks where the head may be struck by objects, contact electrical sources, or entangle hair. 1. 2. 3. Hazards considered. a) Suspended loads. b) Overhead bump hazards. c) Energized wires or equipment. d) Falling & flying objects. e) Machine parts such as chains, belts, rotating devices, suction devices, and blowers that can draw in and entangle hair. Hazards identified. a) Construction sites. b) Trenching or utility projects where tools or other objects may fall from above and strike staff on head. c) Workplaces with traffic routes located under catwalks or conveyor belts. d) Workplaces with hardhat required areas. e) Performing CET job tasks in close proximity to machinery with moving parts that may pose entanglement hazard for staff with long hair. Head protection selected based on hazards identified. NOTE: Only head protection that meets American National Standards Institute (ANSI) standard Z89.1-1986, Class A will be purchased or accepted. 4. Hair protection: When performing CET job tasks, CET staff must use a hat, cap, or a net that will completely enclose all loose hair when there is a danger of hair entanglement in moving machinery or equipment. 4 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program B. Eye and Face Hazards. Observing tasks that may produce significant airborne dust/flying particles or projectiles (e.g., sawing, cutting, drilling, sanding, grinding operations). Performing tasks where staff is observing welding or torch brazing operations that may produce optical radiation. Performing tasks where staff is observing operations that may produce eye irritants (e.g., acid mist, fiberglass, smoke) and/or chemical splash. 1. 2. 3. Hazards considered. a) Chemical splashes b) Dust c) Irritants d) Welding operations e) Flying particles Hazards identified. a) Performing CET job tasks where staff is observing tasks (sawing, cutting, drilling, sanding, grinding operations) that may produce significant airborne dust/flying particles or projectiles. b) Performing CET job tasks where staff is observing welding or torch brazing operations that may produce optical radiation. c) Performing CET job tasks where staff is observing operations that may produce eye irritants (e.g. acid mist, fiberglass, smoke). Eye/face protection selected. a) All eye/face protection will be equipped with side shields and meet MIOSHA PPE standard requirements, will be purchased or accepted for use. b) Staff wearing contact lenses must also wear appropriate eye/face protection devices in a hazardous environment. c) Staff wearing prescription lenses shall either incorporate the prescription in the design of the protective eyewear or fit eye protection over the prescription lenses. 5 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program d) C. Chemical splash goggles and/or face shield shall be used where appropriate. Noise Hazards. Performing tasks in work area identified by the employer as a “hearing protection required” area, or areas too loud to have normal conversation (approximating 85 dBA). Another rule of thumb is that background noise levels so loud that one has to shout to be heard three feet away is approximately 90 dBA. CET staff has access to sound level meters (and additional meters will be purchased for greater availability) so that staff can more accurately assess the noise exposure in their work environments. 1. 2. Hazards considered. a) Machining b) Grinding c) Sanding d) Pneumatic equipment e) Generators f) Ventilation fans g) Motors h) Presses In accordance with MIOSHA-ADM-05-1, MIOSHA Hearing Conservation Program, hearing protection is selected to be used where necessary or where it is required by the employer. Several styles of hearing protection will be made available (foam earplugs, silicone earplugs, canal caps, and earmuffs). See IX a) 1-7 for stocked selections. After assessing the environmental noise level, the proper plug or muff should be selected so that the resulting noise level at the eardrum falls in a range between 70 and 85 dBA. Using a hearing protector that reduces the sound level at the eardrum to less than 70 dBA, may result in overprotection. In those with significant existing hearing loss (50–60 dB shift), overprotection may reduce warning signals (e.g. lift truck horn) to levels that cannot be heard so it is important to select the appropriate protector. See Appendix C for additional guidance on moderate to low noise environment hearing protection. 6 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program D. Hand Hazards. Performing tasks where staff may collect wipe or bulk samples and have limited hand contact with chemicals. Also, where staff may otherwise handle abrasive materials or when working in cold weather. 1. E. Hazards considered. a) Chemicals b) Sharp edges, splinters, pointed materials, etc. c) Temperature extremes. d) Sharp tools, machine parts, etc. e) Material handling. 2. Hazards identified include performing CET job tasks where staff may collect wipe or bulk samples, and have limited hand contact with chemicals. 3. Hand protection selected is chemical resistant. See Appendix B of MIOSHA-ADM-06-4 for additional selection guidance. Foot Hazards. Performing tasks where staff is subject to walking on sharp objects or walking areas where tools, heavy equipment, or other objects may roll, fall onto, or strike the foot. 1. 2. Hazards considered. a) Heavy materials handled by employees. b) Sharp edges or points (puncture risk). c) Exposed electrical wires. d) Slippery conditions. e) Wet conditions. f) Construction/demolition. Hazards identified include performing CET job tasks where staff is subject to walking on sharp objects or walking in areas where tools, heavy equipment, or other objects may roll, fall onto, or strike the foot. 7 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program 3. Foot protection selected. a) Toe protection (steel-toed footwear). b) Puncture resistant soles. NOTE: Only steel-toed shoes that meet ANSI standard Z.41, 1991 are to be worn on a construction site. Athletic type shoes, sandals, and other types of open-toe shoes are not permitted when performing CET job tasks. F. Body Hazards. Performing tasks in work areas where body and personal clothing is subject to splashes of corrosive liquids, flammable, molten metal, sparks, flames or hot surfaces, contact with sharp or rough surfaces, or heavily soiled/contaminated surfaces. Performing tasks at unheated or outdoor locations when there is significant exposure to severe weather conditions. Exposure to conditions that may cause drowning and exposure to traffic on roadway projects. 1. 2. Hazards considered. a) Intense heat b) Splashes of hot metal c) Cuts d) Radiation e) Severe cold weather f) Struck by g) Chemical exposure Hazards identified. a) Performing CET job tasks in work areas where staff’s body and personal clothing is subject to splashes of corrosive liquids. b) Performing CET job tasks in work areas where staff’s body and personal clothing is subject to contact with sharp or rough surfaces. c) Performing CET job tasks in work areas where staff’s body and personal clothing is subject to heavily soiled/contaminated surfaces. 8 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program d) 3. G. Performing CET job tasks at outdoor operations (ex. sawmills, logging, construction) when there is significant exposure to severe cold weather conditions. Body protection selected. a) Disposable where appropriate (e.g., tyvek). b) Untreated natural fiber (e.g., cotton lab coat). c) Insulated (e.g., coveralls, jacket). d) Reflective vests. Other Hazards. 1. Laser 2. Water 3. Ionizing radiation 4. Explosion 5. Electrical 6. Fall NOTE: A hazard assessment for special CET assignment will be done on a case-by-case basis to determine appropriate head, eye, face, foot, hand, body, or other protective equipment. VIII. IX. Hazard Assessment Certification. See Appendix A of this instruction. PPE Selection and Use. A. CET selected PPE. Based on identified hazards CET staff may be exposed to when performing job tasks, the CET PPE Program Committee selected the following appropriate PPE for issuance and use by CET staff. 1) Class A hard hat. 2) Non-prescription safety glasses with full side shields. 3) Chemical goggles. 9 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program 4) Welding goggles with shade 5 lens. 5) Chemical resistant gloves which include Disposable Polyethylene Gloves, Pre-Powdered Vinyl Gloves, Vinyl Gloves, Latex Rubber Gloves, Natural Rubber Gloves, and Nitrile Gloves. 6) Disposable coveralls. 7) Earplugs and earmuffs which include Earmuff-Over the Head, NRR 30 Decibels, Earplugs-Soft Foam, NRR 31 Decibels, Earplugs-Soft Foam, With Cord, NRR 31 Decibels, Earplugs-PreShaped Foam, With Cord, NRR 33 Decibels, Earplugs-Multi-Sized Foam, NRR 31 Decibels, Earplugs-Push-Ins, NRR 28 Decibels, Earplugs-Pod Plugs, NRR 25 Decibels. B. State Issued PPE. CET selected PPE may be ordered by staff from the Management and Technical Services Division (MTSD), Laboratory and Equipment Services Section (LESS). Equipment Request Form should be used. Details on the PPE being ordered (size, brand, type) should be entered in the “Other” section of the form. C. Staff owned PPE. 1. General: Staff-owned and state provided PPE may be selected and used when performing CET job tasks. Staff-owned protective clothing and equipment must fit properly, be of safe design and construction for the work to be performed, be in sanitary and reliable condition, and meet applicable MIOSHA and ANSI standards. 2. Foot protection: When performing tasks where foot hazards have been identified, staff may purchase and use foot protection of their choice. Selected foot protection must minimally provide toe protection and be puncture resistant and meet ANSI standard Z.41, 1991 requirements. 3. Eye protection: When performing CET job tasks where eye hazards have been identified, staff that wear prescription glasses may use their glasses as primary eye protection. The glasses should have side shields and need to meet the requirements of ANSI standard 787.1-1989. 4. Body protection: Staff performing CET job tasks at outdoor operations for extended time periods where there is significant exposure to severe weather conditions may purchase and use body protection of their choice, in accordance with the CET Cold Weather Protective Clothing Policy (Appendix B). 10 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program Acceptable examples of cold weather clothing could be, but are not limited to, brand names such as Carhartts, Dickies and Walls. Athletic styles, decorative leather, polypropylene shell (or other flammable material), full length coats, camouflage or hunters orange garments, or garments not suitable for the work site are not acceptable. CET staff may be reimbursed for the purchase of body protection in accordance with applicable Civil Service Commission or collective bargaining agreement language. NOTE: CET staff reimbursement for the purchase of foot, prescription eye, or body protection will be in accordance with applicable Civil Service Commission or collective bargaining agreement language. D. X. XI. Client-owned PPE. Client-owned PPE when provided by the client (e.g., safety glasses or disposable gloves) may be used by CET staff in lieu of CET or staffowned PPE when performing job tasks if the equipment is of safe design and construction for the work to be performed, in sanitary and reliable condition, and meets applicable MIOSHA and ANSI standards. PPE Cleaning and Maintenance. A. CET staff will be responsible for inspecting, cleaning, and maintaining PPE at regular intervals per manufacturer’s recommendations for each item of PPE provided by CET. The following cleaning equipment is available, and may be ordered from LESS using the LESS Equipment Request Form. Items include Personal Safety Equipment Cleaning Pad, 70% Isopropanol, Eyewear Cleaning Wipes, contain Isopropyl Alcohol, Antiseptic Wipe, 70% Isopropyl Alcohol, Safety Equipment Cleaner-Sanitizer, Kimwipes EX-L, Non-abrasive Tissue Paper. B. Personal protective equipment worn shall not be shared between employees until it has been properly cleaned and sanitized. It is also important to ensure that contaminated PPE that cannot be decontaminated will be disposed of in a manner that protects employees from exposure to hazards. C. All assigned PPE shall be stored in a manner and location that will help prolong the life of the equipment. Training. All CET staff assigned PPE shall receive training in the proper use and care of the equipment. Periodic retraining shall be offered as needed. The training shall include, but not necessarily be limited to, the following subjects: A. When PPE is necessary to be worn. 11 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program XII. B. What PPE is necessary. C. How to properly don, doff, adjust, and wear PPE. D. The limitations of the PPE. E. The proper care, maintenance, useful life, and disposal of the PPE. F. Inspection of PPE. Record Keeping. Written records shall be kept of the names of CET staff trained, the type of training provided, and the dates when training occurred. The CET Division secretary will enter CET staff training records into the CET training database. The CET Division secretary shall also maintain the Hazard Assessment Certification form for at least three years. 12 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program APPENDIX A HAZARD ASSESSMENT CERTIFICATION MIOSHA CONSULTATION EDUCATION AND TRAINING DIVISON (CET) I certify that a personal protective equipment hazard assessment was performed to the best of my knowledge and ability, based on the hazards identified for Consultation Education and Training Division fieldwork. The hazard assessment is contained in CET instruction ______, effective ________. Certification of training on the use of PPE was conducted on ___________, 20____. Names of employees trained are recorded in the CET training database. The subjects of training are discussed in CET instruction _______. ________________________ Signature ______________ Date 13 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program APPENDIX B CONSULTATION EDUCATION AND TRAINING DIVISION COLD WEATHER PROTECTIVE CLOTHING POLICY Background: Consultation Education and Training Division personnel conduct inspections and investigations or supervisory visits on construction projects. By its nature, the construction process involves significant exposure to the elements including cold weather conditions. When Division personnel are exposed to cold weather, insulated clothing is necessary to protect the body against its ill effects. Construction Safety Officers (Michigan State Employees Association Contract Provision): Secondary language negotiated in Article 22, Section F, Protective Clothing, provides that Michigan State Employees Association (MSEA) represented employees (safety inspectors) shall be reimbursed for the purchase of insulated clothing provided they have obtained supervisory approval. Insulated Clothing Selection: Division staff should make responsible choices when selecting apparel. Clothing of good insulating value, durable strong material, preferably of natural fiber, should be selected. The apparel must comply with the standards enforced by MIOSHA, required by the site visited, and conform to other accepted criteria in the construction industry. Insulated coveralls, insulated bibs or pants & jacket, or insulated coats are allowable. Acceptable examples of cold weather clothing could be, but are not limited to brand names such as Carhartts, Dickies, and Walls. Athletic styles, decorative leather, polypropylene shell (or other flammable material), full-length coats, camouflage or hunters orange materials, or garments not suitable for construction sites will not be approved. Use and Care of Insulated Clothing: Reimbursement is intended only for clothing to be used during hours of employment with MIOSHA. It is expected the insulated garments will receive adequate care and be serviceable for one or more winter seasons. Ordinary upkeep (i.e. normal laundering, etc.) of the cold weather clothing will be the responsibility of the employee. If severe soiling or physical damage occurs such as grease, oil, paint stains, or rips or tears, the employee should have the garment cleaned and/or repaired as appropriate. Advance supervisory approval is required for reimbursement when other than normal repairs or cleaning are necessary (i.e. dry cleaning, tailoring for rips and tears, etc.). Reimbursement: For initial purchase of cold weather clothing, the employee shall notify his/her supervisor of the intent to purchase and identify the garment to be purchased including brand, constituent materials, style, cost, and any other information desired by the supervisor to evaluate the suitability of the apparel. After the supervisor has approved the proposed clothing, the employee 14 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program may make the purchase and submit the receipt for reimbursement. The receipt must be the original copy and shall indicate the approved type of garment. Regardless of the brand desired, the most recent Carhartt catalog will be used as a maximum that each supervisor can approve. (We encourage employees to obtain the most reasonable prices available.) Information on Carhartt products can be found at www.carhartt.com. Replacement: Supervisory approval for replacement of cold weather clothing will be on a case-by-case basis. Age, wear, soiling, damage, etc. will be considerations in the approval of replacement reimbursement. The Division safety and health manager must approve replacement items. 15 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program APPENDIX C CONSULTATION EDUCATION AND TRAINING DIVISION VARIETY OF PERSONAL HEARING PROTECTION STYLES August 2006 In some noise environments a standard foam earplug is not protective enough and earmuffs must be worn in addition to an earplug. In moderate to low noise environments (85 to 90 dBA), an earplug with a Noise Reduction Rating (NRR) of 33 may be overprotective if worn properly. Therefore, a variety of hearing protectors will be supplied to CET staff so that the appropriate noise attenuation can be achieved. Currently, the following styles of hearing protectors are available upon special requests: 1) EAR Pro Musician (distortion-free earplug) NRR = 12 dB 2) EAR Ultra 9000 (noise activated earmuff) NRR = 16 dB 3) EAR Caps (foam canal caps) NRR = 17 dB 4) EAR Caboflex (banded polymer plugs) NRR = 20 dB 5) Moldex Jazz Band (banded foam insert) NRR = 25 dB 6) EAR Combat Arms (dual-end polymer plugs) green end out NRR approx 12 dB yellow end out NRR = 22 dB There are additional styles of hearing protection with NRR’s of 30 or greater that the MTSD/LESS has made available to MIOSHA staff. If there are special needs or fitting difficulties, additional styles or sizes of hearing protectors can be ordered with your supervisor’s approval. There is agreement that NRRs are estimates of the real-world effectiveness of hearing protection. Some suggest subtracting 7dB from the NRR, some suggest cutting the NRR in half. Others suggest using both methods in tandem, but that is clearly too conservative for most low NRR devices. To achieve an actual attenuation at the eardrum of between 70 and 85 dBA, consider the following guidance as you select the appropriate protector from the list of NRRated devices above: If the noise environment is greater than 100 dBA, use dual protection. If the noise environment is between 95 and 100 dBA, use a device with an NRR >30. If the noise environment is between 90 and 95 dBA, use a device with an NRR 20 – 25. If the noise environment is between 85 and 90 dBA, use a device with an NRR 15 – 20. If the noise environment is between 80 and 85 dBA, use a device with an NRR 10 – 17. 16 CET-ADM-06-03 October 19, 2006 Hazard Assessment/Personal Protective Equipment Program APPENDIX D CONSULTATION EDUCATION AND TRAINING ICM EQUIPMENT, SUPPLIES AND SERVICE REQUESTS Please click this link to obtain the equipment form: http://www.michigan.gov/documents/ICM2006F001v010UC_166963_7.pdf 17